Since the 1980s we have had access to calculators of various types. Today, we can include computers and smartphones – which are attached to our hip 24/7. So does this ubiquitous access to calculators affect our ability to do maths in our heads like we used to? Thirty years ago calculators promised immense opportunity – […] … learn more→
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Weapons of maths destruction: are calculators killing our ability to work it out in our head?
Don\’t throw away those old rabbit ears!
Some solar devices, like calculators, only need a small panel of solar cells to function. But supplying enough power to meet all our daily needs would require enormous solar panels. And solar-powered energy collected by panels made of silicon, a semiconductor material, is limited — contemporary panel technology can only convert approximately seven percent of […] … learn more→